Spectroscopic studies of copper and carbon ion irradiated polypropylene

Abstract

The samples of polypropylene (PP) have been irradiated with 120 MeV 64 Cu 9+ and 70 MeV 12 C 5+ ion beams, with the fluence ranging from 1 × 10 13 to 1 × 10 11 ions/-cm -2 . UV-VIS and FTIR techniques have been used to study the chemical and optical properties of these irradiated polymers. UV spectra revealed that the optical-gap energy decreases by 54 % with copper ion irradiation at the fluence of 1 × 10 13 ions/cm 2 , whereas at the same fluence, carbon beam decreases the optical-gap energy by 20%. FTIR analysis of ion irradiated samples revealed the presence of -OH, C = O and C = C bonds. Alkyne formation has been observed only in the case of copper ion irradiation.